Add Travis-CI build status to readme.
Remove problematic iOS scheme.

- Kept thinking it should build for the Mac…
Create separate test targets for iOS and Mac.
Fix potential issue with symbols not yet existing.

- Due to the order of imports in the CDKitt PCH.
Fix copyright year.
Change configuration to Test for the Mac scheme test action.
Add iOS scheme.

- Fixes the problem that caused the CI build script to fail for iOS. The
issue was that the old scheme told Xcode to build the iOS target for
x86_64 and link with the Mac environment…